fix: Needed to support the bad request flow, the toast will hang forever, the return control flows don't dismiss a forever toast

docs/kcl-src/settings.md

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+---
+title: "KCL Settings"
+excerpt: "Documentation of settings for the KCL language and Zoo Design Studio."
+layout: manual
+---
+
+# KCL Settings
+
+There are three levels of settings available in Zoo Design Studio:
+
+1. [User Settings](/docs/kcl/settings-user): Global settings that apply to all projects, stored in `user.toml`
+2. [Project Settings](/docs/kcl/settings-project): Settings specific to a project, stored in `project.toml`
+3. Per-file Settings: Settings that apply to a single KCL file, specified using the `@settings` attribute
+
+## Configuration Files
+
+Zoo Design Studio uses TOML files for configuration:
+
+* **User Settings**: `user.toml` - See [complete documentation](/docs/kcl/settings-user)
+* **Project Settings**: `project.toml` - See [complete documentation](/docs/kcl/settings-project)
+
+## Per-file settings
+
+Settings which affect a single file are configured using the settings attribute.
+This must be at the top of the KCL file (comments before the attribute are permitted).
+For example:
+
+```kcl
+// The settings attribute.
+@settings(defaultLengthUnit = in)
+
+// The rest of your KCL code goes below...
+
+x = 42 // Represents 42 inches.
+```
+
+The settings attribute may contain multiple properties separated by commas.
+Valid properties are:
+
+- `defaultLengthUnit`: the default length unit to use for numbers declared in this file.
+  - Accepted values: `mm`, `cm`, `m`, `in` (inches), `ft` (feet), `yd` (yards).
+- `defaultAngleUnit`: the default angle unit to use for numbers declared in this file.
+  - Accepted values: `deg` (degrees), `rad` (radians).
+
+These settings override any project-wide settings (configured in project.toml or via the UI).